Product Description

BACtrack’s smallest smartphone breathalyzer, the Vio instantly transforms your iPhone or Android device into a breathalyzer and offers a host of app-enabled features. It’s ultra-compact keychain design makes it perfect for BAC testing on the go.

This unit is perfect for on the go consumers, if you are chasing the Police-grade unit then, check the BT-M5 – click here.


Key Features

  • Bluetooth® Connectivity – Wirelessly syncs with your iPhone or Android smartphone via Bluetooth – no need to plug into the headphone jack
  • ZeroLine® Technology – Estimates when your BAC will return to 0.00%, empowering you to make smarter, more informed decisions
  • Ultra-Compact Design – Fits inside a purse or pocket and can be easily used as a keychain
  • Free BACtrack App – Saves and tracks BAC results over time, including optional photos, notes and drink logs
  • Guess Your BAC – Helps you better understand how alcohol is affecting your body
  • Advanced MicroCheck® Sensor – For higher performance and more accurate, reliable results when compared to standard semiconductor sensors.
Dimensions 0.95 x 2.85 x 0.65 inches
Weight 2.0 oz (57g)
Mouthpieces Fold-out; 3 included
Battery 1 AAA battery, included
Sensor Technology Advanced MicroCheck®
Warm-up Time About 10 seconds
Blowing Time 5 seconds
BAC Range 0.000-0.400% BAC
Warranty 1 Year
Compatible Devices iPhone 4S, 5, 5S, 5C; iPad 3, 4, iPad Air, iPad Mini 1 and 2; iPod Touch 5; Samsung Galaxy S3, S4, S5, and other Android 4.3 (and above) smart devices equipped with Bluetooth Smart


Advanced Technology, Superior Design

Through proprietary MicroCheck® Sensor technology, BACtrack Vio offers users a high level of accuracy and reliability. Using a semiconductor sensor as a base, the MicroCheck® sensors go through a patented burn-in process that equalizes the response, resulting in a higher level of performance, when compared to standard semiconductor sensors.
Vio was also designed with an innovative flip-up mouthpiece to collect a high quality breath sample, an essential component for reliable results; a user’s breath goes into the breathalyzer and ambient air, fumes, and other airborne gases are kept out. The folding mouthpiece pulls out during testing and slides back down during storage.

Breakthrough Features

BACtrack Vio offers features never previously available on a breathalyzer. Its unique ZeroLine® estimates how long it will take your Blood Alcohol Content to return to 0.00% based on your last test result. ZeroLine is displayed after every result and tracks your estimated BAC over time.
Want to see your BAC from last night or last week? It’s easy—just save results and view your history on the Tracking Graph. Attaching pictures, notes, drinks, and locations to your readings is a snap. And safety information is always just a click away. Learn how a 0.05 %BAC may impact your vision, motor skills, and coordination.


Privacy and Sharing

Your BAC results can be as private or as public as you want them to be. Simple privacy settings put you in control over what data is saved, if any. Choose to share readings privately via text message with a friend or family member, along with photos, location, and time. Feeling social? Share results with your network on Facebook or Twitter and spark a dialog about responsible drinking.

How it Works

It takes only seconds to pair BACtrack Vio with your iPhone or Android device. Click “Take a reading” on your phone and blow into BACtrack Vio. The app visually guides you through the test process, displaying results on your phone.The companion BACtrack app is a free download from the App Store or Google Play.